公开(公告)号：US20230348691A1

公开(公告)日：2023-11-02

申请号：US18350889

申请日：2023-07-12

Applicant: XEROX CORPORATION

Inventor： Robert CLARIDGE ,  Valerie M. FARRUGIA

IPC: C08K3/34 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/314 ,  B29C64/153 ,  B33Y40/10 ,  C08J3/12 ,  B29B9/10

CPC classification number: C08K3/346 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/314 ,  B29C64/153 ,  B33Y40/10 ,  C08J3/12 ,  B29B9/10 ,  B29K2503/08

Abstract: Methods for producing highly spherical particles that comprise: mixing a mixture comprising: (a) nanoclay-filled-polymer composite comprising a nanoclay dispersed in a thermoplastic polymer, (b) a carrier fluid that is immiscible with the thermoplastic polymer of the nanoclay-filled-polymer composite, optionally (c) a thermoplastic polymer not filled with a nanoclay, and optionally (d) an emulsion stabilizer at a temperature at or greater than a melting point or softening temperature of the thermoplastic polymer of the nanoclay-filled-polymer and the thermoplastic polymer, when included, to disperse the nanoclay-filled-polymer composite in the carrier fluid; cooling the mixture to below the melting point or softening temperature to form nanoclay-filled-polymer particles; and separating the nanoclay-filled-polymer particles from the carrier fluid.

公开(公告)号：US20250025843A1

公开(公告)日：2025-01-23

申请号：US18218445

申请日：2023-07-05

Applicant: XEROX CORPORATION

Inventor： Robert CLARIDGE ,  Valerie M. FARRUGIA ,  Basma MATTI ,  David LAWTON

IPC: B01D71/60 ,  B01D69/02

Abstract: A structured organic film (SOF) includes a plurality of segments, and a plurality of linkers, where at least one of the plurality of linkers connects at least one of the plurality of segments. The film also includes where at least one or more of the plurality of segments may include an ionic species or a nonionic species. The structured organic film (SOF) can include a piperidinium-based quaternary ammonium segment. The piperidinium-based quaternary ammonium compound may include N-hydroxyethylmethyl-4-piperidiniummethanol (NHM4PiP). At least one of the plurality of segments may include a pyridinium-based quaternary ammonium compound. The pyridinium-based quaternary ammonium compound may include N-hydroxyethyl-4-pyridiniummethanol (NH4MPy). Free-standing structured organic films can be folded without cracking at a fold line and are flexible and water-swellable and stable without tearing during exposure to water, and flexible and stable without tearing subsequent to water exposure and drying.

公开(公告)号：US20250019506A1

公开(公告)日：2025-01-16

申请号：US18218420

申请日：2023-07-05

Applicant: XEROX CORPORATION

Inventor： Valerie M. FARRUGIA ,  Kentaro MORIMITSU ,  Robert CLARIDGE ,  Basma MATTI

IPC: C08J5/18 ,  B01J47/12 ,  C08K5/053 ,  C08K5/18 ,  C08K5/19 ,  C08K5/3445

Abstract: A structured organic film (SOF) is described, including a plurality of non-polymeric, non-fluorinated polyol segments, and a plurality of linkers. The non-polymeric, non-fluorinated polyol segment can include pentaerythritol, triethylene glycol (TEG), benzyl tris(2-hydroxyethyl) ammonium (BTHEA), or a combination thereof. The structured organic film can include a plurality of capping segments, for example, a plurality of ionic capping segments, such as N-hydroxyethyl-1,2,4,5-tetramethylimidazolium (NEtTMIm), N-hydroxypropyl-1,2,4,5-tetramethylimidazolium (NPTMIm), or a combination thereof. An ion-exchange membrane may include one or more examples of the structured organic film (SOF).

公开(公告)号：US20250011568A1

公开(公告)日：2025-01-09

申请号：US18887230

申请日：2024-09-17

Applicant: XEROX CORPORATION

Inventor： Robert CLARIDGE ,  Valerie M. FARRUGIA

IPC: C08K3/34 ,  B29B9/10 ,  B29B9/16 ,  B29C64/153 ,  B29C64/314 ,  B29K503/08 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00 ,  C08J3/12

Abstract: Methods for producing highly spherical particles that comprise: mixing a mixture comprising: (a) nanoclay-filled-polymer composite comprising a nanoclay dispersed in a thermoplastic polymer, (b) a carrier fluid that is immiscible with the thermoplastic polymer of the nanoclay-filled-polymer composite, optionally (c) a thermoplastic polymer not filled with a nanoclay, and optionally (d) an emulsion stabilizer at a temperature at or greater than a melting point or softening temperature of the thermoplastic polymer of the nanoclay-filled-polymer and the thermoplastic polymer, when included, to disperse the nanoclay-filled-polymer composite in the carrier fluid; cooling the mixture to below the melting point or softening temperature to form nanoclay-filled-polymer particles; and separating the nanoclay-filled-polymer particles from the carrier fluid.

公开(公告)号：US20240239967A1

公开(公告)日：2024-07-18

申请号：US18153836

申请日：2023-01-12

Applicant: XEROX CORPORATION

Inventor： Valerie M. FARRUGIA ,  Robert CLARIDGE

IPC: C08J3/09 ,  B29C71/02 ,  C08J5/18

CPC classification number: C08J3/095 ,  C08J5/18 ,  C08J7/08 ,  C08J2461/16

Abstract: A method of forming a pre-cure solution for a structured organic film (SOF) is described, including contacting at least one type of segment and at least one type of pre-linker with a bio-based solvent. The method also includes dissolving the at least one type of segment and the at least one type of pre-linker within the bio-based solvent. The method also includes where the bio-based solvent has a viscosity above 0.92 MPa-s. A composition including a bio-based solvent is also disclosed.

公开(公告)号：US20240191042A1

公开(公告)日：2024-06-13

申请号：US18581015

申请日：2024-02-19

Applicant: Xerox Corporation

Inventor： Valerie M. FARRUGIA ,  Robert CLARIDGE ,  Hojjat Seyed JAMALI

IPC: C08J3/205 ,  C08F14/22 ,  C08K3/04 ,  C09D11/037 ,  C09D11/101 ,  C09D11/106

CPC classification number: C08J3/2056 ,  C08F14/22 ,  C08K3/042 ,  C09D11/037 ,  C09D11/101 ,  C09D11/106 ,  C08K2201/005 ,  C08K2201/011

Abstract: High spherical particles for use in piezoelectric applications may be produced mixing a mixture comprising a graphene oxide-polyvinylidene fluoride (GO-PVDF) composite, a carrier fluid that is immiscible with the PVDF, and optionally an emulsion stabilizer at a temperature equal to or greater than a melting point or softening temperature of the PVDF to disperse the GO-PVDF composite in the carrier fluid, wherein the GO-PVDF composite has a transmission FTIR minimum transmittance ratio of β-phase PVDF to α-phase PVDF of about 1 or less; cooling the mixture to below the melting point or softening temperature of the PVDF to form GO-PVDF particles; and separating the GO-PVDF particles from the carrier fluid, wherein the GO-PVDF particles comprise the graphene oxide dispersed in the PVDF, and wherein the GO-PVDF particles have a transmission FTIR minimum transmittance ratio of β-phase PVDF to α-phase PVDF of about 1 or less.

公开(公告)号：US20240174808A1

公开(公告)日：2024-05-30

申请号：US18051800

申请日：2022-11-01

Applicant: XEROX CORPORATION

Inventor： Robert CLARIDGE ,  Valerie M. FARRUGIA

IPC: C08G73/02 ,  C07C215/82 ,  C08J5/18

CPC classification number: C08G73/0273 ,  C07C215/82 ,  C08J5/18 ,  C08J2379/04

Abstract: A structured organic film (SOF) is disclosed. The structured organic film also includes a plurality of segments, a plurality of linkers, and a plurality of ionic capping segments, where at least one or more of the ionic capping segments may include a piperidinium group. Implementations of the structured organic film (SOF) may include where the piperidinium group is a bicyclic piperidinium group. The piperidinium group can be an n-cyclic quaternary ammonium. A total concentration of ionic segments in the SOF is from about 0.1 to about 5.0 molar equivalents based on a total concentration of segments in the SOF. The piperidinium group can be 3-methanol-6-azoniaspiro[5.5]undecane (MeASU). The structured organic film (SOF) has an ion exchange capacity (IEC) of from about 0.25 meq/g to about 5.00 meq/g. An ion-exchange membrane may include the structured organic film (SOF).